MP8007 ― IEEE 802.3AF PD WITH 13W FLYBACK / BUCK CONVERTER

MP8007 Rev.1.0

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7

6/27/2016

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ELECTRICAL CHARACTERISTICS (continued)

VDD, CLASS, DET, T2P and RTN voltages are referred to VSS, and all other pin voltages are

referred to GND, GND and RTN are shorted together. VDD – VSS = 48V, VSS = 0V; RDET = 24.9kΩ,

RCLASS =41.2Ω. TJ = -40°C to +125°C, typical values are tested at TJ = 25C, unless otherwise

noted.

DCDC Converter Thermal Shutdown

Thermal Shutdown

Temperature

(10)

TSD

150

ºC

Thermal Shutdown

Hysteresis

(10)

THYS

20

ºC

9) If VDD-AUX>2.3V, IC enable adapter input, if VDD-AUX<0.6V, IC enable PSE input. Refer to "Wall adaptor detection and operation"

section for AUX setting.

10) Guaranteed by characterization, not tested in production.

11) The maximum VCC UVLO rising threshold is higher than the minimum VCC regulation in the EC table due to production distribution.

However, for one unit, VCC regulation is higher than the VCC UVLO rising threshold. The VCC UVLO rising threshold is about 87 percent

of the VCC regulation voltage, and the VCC UVLO falling threshold is about 83 percent of the VCC regulation voltage in one unit.